I was headed west to YNP from Buffalo, WY. taking US 16 from Buffalo to Worland, north to Greybull, then West to Cody for a few days to visit the museum. US 16 has the least climbs and descents across the Beartooth Range. I stayed at Absaroka Bay RV park. Nice folks running it. At my request, they gave me a spot near the laundry facilities. They, too, didn't know why 'Absaroka' was pronounced 'Absorka'.
And even though its near the end of the "Yellowstone Regional Airport", it isn't long enough to support anything larger than a small biz jet, so no noise.
BTW, if your taste buds are yearning for some Buffalo Jerky, Cody has several stores that sell it, along with all kinds of Buffalo souvenirs. Most of the souvenirs have a "Made in China" tag on them. :)